Carding-engine.



F. VO'STBR L M. JUNGBAUER.

GARDING ENGINE.

APPLIOATIGN FI-LED MAB. 20, 1911.

1,103,231. Patented July 14,1914.

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narra vs'rnn AND MAXJUNGBAUER, or faussnune, GERMANY, lassumons ro CoonAnn co., or mancnnsrnn, ENGLAND, .a maar.

camine-Erreurs.

Tatented July id, time.

Qrgnal application iled December 27, 1969, Serial No. 535,093. Dividedand this application led March 20, 1911. Serial No. 615,463.

T 0 all '107mm 'it may concern Be it known that We, FRITZ Vs'rnn and MAXJUNGBAUER, both of Augsburg, Germany, have invented certain new anduseful improvements in Carding-Engines, of which the following is aspeciication.

This invention relates to apparat-us for cleaning the card clothing ofearding engines by suction and its object is to provide improved meanswhereby the card clothing may be cleaned or stripped by suction aloneWithout the assistance of rotating brushes or air under pressure as hashitherto been proposed.

lt is well known that in the process of cai-ding textile ibers the shortangular Wires of the carding engine cylinders become clogged with fibersor impurities which must be removed periodically. This removal of allimpurities that become embedded in the card teeth is called strippingCarding engines usually. employ a Amain carding cylinder and a doifer;it is the main cylinder that actually performs the carding operation,While the doii'er merely removes the carded fibers from the points ofthe teeth ofthe main cylinder. |This diiference of func-- tion causesthe matter embedded in the teeth of 'the cylinder and dolier to diifervery considerably; z'. e., the material that clogs the teeth of the maincylinder consists of seeds, leaf and short-staple cotton, and thesematerials become'very firmly matted and embedded in the wires of thecard clothing and are therefore very diliicult to remove satisfactorily.Thev material that clogs the teeth of the doiier isof a very diiierentnature-particularly all of the heavier irnpurities (leaf, seeds, etc.,)having been rcmoved by the main cylinder-a-nd consists almost entirelyof short-staple cotton and dust, which is not very firmly embedded andtherefore is not ditticult to remove, this being due, as stated above,to the work of the dotier, viz., the removing of the already cardedfibers from the nia-in cylinder.

Prior to the present invention rotating brushes were used to remove theembedded materials from the teeth of the card cylinder. In thisoperationthe -ibrous portions of the embedded material clung to the wire teeth of the brush, but the' greater bulk of the heavier portions of theembedded materials and the Whole of the dust were thrown into theatmosphere, which Was thus polluted. Many attempts have heretofore lbeenmade to utilize suction for collecting the materials (dust, leaf, andseeds) thrown linto the atmosphere by rotary brushes; in Vsome easessuction nozzles have been arranged near the brush, but suchconstructions have had no commercial success; in .other cases 'the brushhasbeen inclosed in ia. -canopy or hood to catch or retain the winst,etc., which Was then carried away through suction pipes connected to theinterior of the hood, and such arrangements, although removing the dust,have not obviated the disadvantages of the rotary stripping brush.vantages are (l.) It is impossible to clean the carding surface of thecylinder completely With a brush. The carding surface consists of bentwlres usually set in a rubber-faced. fabric and if the rotary brush wereset deep enough to reach the fabric in Which the teeth are manently.(2.) The Wires or teeth of the card clothing are bent at an obtuseangle, so the rotary brush besides blunting the points is liable toinjure the Wire teeth themselves they are mounted. v

(3.) lt is impossible to use a rotating brush While the cylinders arerotating at full speed. The carding engine must be stopped, and thecylinder subsequently rotated slowly While the stripping brush is beingapplied. From this it will be gathered that it is much tant commerciallyto clean the main cylinder than it is to clean a dolfer; a. doifer couldbe easily stripped in several Ways, but the cleaning of the maincylinder was for years a diliicult matter.

One of the objects of the present invention is to provide means wherebythe carding cylinder may be cleaned by suction While the same is runningat full speed.

A further object is to provide means for and for shifting the same so asto traverse the entire cylinder surface.

The invention Will be hereinafter fully set forth and particularlypointed out in the claims'.

The chief of these disad and to loosen them in the fabric in whichmoredifficult and also much more imporlined the said fabric Would be injuredperproviding a suction opening 'of small volume In' the faccomp nyingdrawings'Figure 1 is a diagrammati jside elevation of a carding engineshowing one vway in which the improvements may be applied g' Fig. 2 isaV front elevation, 'partlyin section, of the traverseV mechanism, thenozzle being showny y in cross section; and Fig. 3 is a side eleval raned parallel with and adjacent to the nozzle car ing surface b of theengine.

Each nozzle N is mounted upon a carriage t which consists of a collarprovided with a guide 1in adapted to engage with adoublethreade screw s;the said carria e slides upon a fixed tube u which incloses t e screw sand which is formed with a .longitudinal slot through which the guidepin projects in order to engage with the threads of the screw s,rotation of the carriage u on the tube u bein thereby prevented. uitableing the carriage t and nozzle N to reciprocate in front of the cardclothing b.

The operation is as follows: While the cardin engine cylinder is inmotion the il? is traversed across the carding surface b, the pumphaving been set in operation. The result is that, owing to the hi hpressure suction set u and maintained gy the ump, and the re ativelysmall volume of t e suction nozzle theiibers, neps, dust, and otherforeign matter embedded in the card clothing b are drawn through thenozzle N, effectively cleaning the card clothing b as indicated in Fig.2, whue the fibers, i

naps, dust and other foreign matter are collected and prevented from'getting into the pump by the filtering action of the col-` lecting box.v v f lof a screw extendin along gcardmg surface,l a screw ,rotatable`in the z sleeve, a nozzle of small volume slidable on the sleeve andhaving va pin .through the slot and engagmg t e screw, yand means forcreating a suction in the nozzle.

means, not s own in the drawings, are provided forrotating the screw sand thus caus- This application is a division of our pendm appllcation,.Serial Number 535,093,

aving now described our said invention what we claim and desire tosecure by Letters Patent in the United States, is:

1. In a carding machine, the combination entirel across and parallelwith the car ing sur ace,^a suction nozzle of.- small volume mounted onthe screw, means for rotating thescrew to move thel nozzlelongitudinally therein, and means for creating a suction'm said nozzle.l

'2. In a carding machine, the combination L with the carding surfacethereof, of a suction nozzle of small volume, means for moving thenozzle entirely across said'surface in a plane parallel therewith, andmeans for creating a suction in said nozzle.

3. In a carding machine, thev combination with the cardin surface, of axed sleeve extending entire y across said surface and provided with alongitudinal slotl extending the whole working breadth of the rojecting4. In a carding engine the combination with the cardi-n surfacethereof,'of suction means provide with asuction opening of jsmall volumeopposite `said surface, and' f means for causing sald suction opening totraverse said cardmglsurface irrespective of l the speed of movement ofthe latter.

5. rEhe combination, with the Vmain cylinj derpof a Cardin machine of anair nozzle of 1small 'volume irected against the idle side of saidcylinder, means to produce a suction 'current through' said nozzle, andmeans to traverse said nozzle progressively to all parts of saidcylinder as the latter rotates.

FRiTz vsTER.

, MAX JUNGBAUER. Witnesses: 'v

JOSEF BAYERK,

JACOB SoHLoTrERN.

